1S38.] Land and Fresh -water Shells of the Himdlayri. 215 



No. 2. Nanina vitrinbides, Desha yes. — This species occurs in 

 the khads or valleys around Subathii; — at Simla, there is found a 

 variety with a rib -like incrassation within the aperture like many of the 

 specimens of another variety found in Bengal. It attains a large size, 

 and the animal is of a dark-green color. It is scarce at Simla, and is 

 found only on very wet rocks in the khads, keeping up the character 

 which it bears in the plains of being essentially a moisture-loving snail. 

 — (H. and B.) 



No. 3, Nanina monticola, Hutton. — " Testa subdiscoidea, pallide 

 vel saturate brunnea, epidermide radiatim et concentrice rugosula, spira 

 depresso-conoidea, apice obtusata; periphaeria minime angulata, suturis 

 leviter impressis, apertura transversa, lunata, labro costa interni sub- 

 marginali albida munito." — Diam. 1.75. — (B.) 



" Umbilicus as in the genus. The shell has a very moderate polish 

 and is sufficiently distinguished from * vitrinbides,' on the one hand, 

 and from < decussata on the other by the radiating wrinkles inter- 

 rupted by concentrically disposed depressed lines, which give the sur- 

 face of the shell a rough aspect, very different from the finely decussa • 

 ted surface of ' decussata' Mr. Benson has specimens of a variety of 



* vitrinbides' taken in Bengal, resembling * N. monticola' in form 

 and in the internal rib of the aperture, but well distinguished by the 

 want of the rugose surface, which appears to have been as it were, 

 planed away to the base of the depressions. The larger specimens of 



* N. monticola obtain a considerable thickness, and there are visible 

 three or four internal varices at various distances, occasioned by the 

 ribs at the apertures of former growths. 



" Lieut. Hutton has observed the dark and light colored varieties in 

 coitu, and has remarked that the latter were those which were fecun- 

 dated. The eggs which were deposited in rotten wood, were oval and 

 greenish white, and about the size of a mustard-seed. 



" The color of the animal is a dirty brown. The dark-colored 

 variety is the more frequent of the two, although both occur of 

 every size. They are abundant at Mahassu under fallen timber, and 

 in the rainy season they climb the stalks of plants, feeding upon the 

 leaves. The largest specimens occur at Hattu, among the ruins of 

 the old forts which crown that mountain. Young specimens were met 

 with among junipers at Liti, at an elevation not much under 14,000 

 feet."— (B.) 



No. 4. Nanina splendens, Hutton, — " Testa discoidea, purpureo- 

 brunnea, polita, leviter concentrice et radiatim striata, striis radiatis re- 

 motis, illis confertissime dispositis ; spira vix elevata ; anfractibus sep- 

 2 p 2 



